(QP-TMP 
  (DNP 
    (LCP 
      (IP 
        (NP-SBJ 
          (NN 事件))
                    
        (VP 
          (VV 发生)))
                    
      (LC 后))
                    
    (DEG 的))
                    
  (QP 
    (CD ３)
                    
    (PU 、)
                    
    (CD ４)
                    
    (CLP 
      (M 天))))
                    
(NP-SBJ 
  (NP-PN 
    (NR 中共))
                    
  (NP 
    (NN 当局)))
                    
(VP 
  (ADVP 
    (AD 也))
                    
  (ADVP 
    (AD 曾经))
                    
  (VP 
    (VV 拦检)
                    
    (NP-OBJ 
      (CP 
        (WHNP-2 
          (-NONE- *OP*))
                    
        (CP 
          (IP 
            (NP-SBJ 
              (-NONE- *T*-2))
                    
            (VP 
              (VV 进出)
                    
              (NP-PN-OBJ 
                (NR 拉萨市))))
                    
          (DEC 的)))
                    
      (NP 
        (NN 车辆))))))
argm: 
                    事件 发生 后 的 ３ 、 ４ 天          
                
arg0: 
                    中共 当局          
                
argm: 
                    也           
                
argm: 
                    曾经          
                
arg1: 
                    进出 拉萨市 的 车辆